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Our field of operation

Since more than 30 years, technology-oriented particle, analysis and sensor systems have been developed, designed and manufactured under the name Topas. They can be used to generate, condition and analyse test and reference aerosols. In addition, more than 60 series devices and 20 test systems of our medium-sized Saxon company have been widely used and proven for the classification and testing of filters and filter media in worldwide industry and basic research for decades.



Applications for our products


Hot Topic: New guideline for exhaust emission limits

The FCS 249 Field Calibration System is best for the calibration of condensation particle counters and electrical aerosol monitors. It complies with all NaCl test aerosol requirements of the German exhaust emission test equipment calibration guideline and is perfectly suited for use in harsh workshop conditions. In the detailed product description more information can be found by measuring device manufacturers in the automotive sector, workshops with calibration laboratories or certification service providers.



left picture of a house from the 90s, right aerial view new Topas company site

Day of German Unity - a good reason to celebrate

It is now 33 years since two German states became one state again after 45 years of divion. Against this background, the founders of Topas GmbH were…

left hall with lecturer and many spectators, right poster gallery with scientific poster from Topas experts

Good air quality at reduced energy costs – a challenge?

This is the motto under which we are meeting today at the Deutsches Hygiene-Museum with many other Saxon institutes and companies for the 14th Dresden…

Visitor at Topas booth learns about aerosol generator ATM 221/D at EAC 2023

EAC 2023: Impressions from Malaga on day 4

With a fully equipped booth, including many exciting demo units, we have been seeing an immense stream of interested visitors since Wednesday. Special…


Lounges Cleanroom Processes


Filtration Day, IUTA



FAD - Conference "Exhaust Aftertreatment Challenge"


A glimpse into our work

Company video

Image brochure

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Since 1999, the quality management of Topas GmbH has been successfully certified according to DIN EN ISO 9001.


The BSFZ seal is exclusively provided to companies that carry out research and development within the meaning of the "Forschungszulagengesetz" (act on research grants). We have received it for the "Development of a novel method for signal evaluation and processing for optical aerosol spectrometers".



Filter test facilities at Topas

In the Topas TIC, our Technical Innovation Center, the doors are open to you: Get an impression on state-of-the-art filter test systems, carry out your own measurements at your air filter products and learn more about the key performance parameters of your product. Qualify your products yourself this way. In addition, training, e.g., for new operators on these systems, can also be provided by experienced Topas engineers. In the recently opened home of the Topas Academy, place of activity of our developers and researchers, modern training rooms and demonstration and measurement technology are available for your projects. Please contact us or read more at Technical Innovation Center & Topas-Academy!